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7-Way & 4-Way Replacement Connector for Dodge OEM Style Plugs

7-Way & 4-Way Replacement Connector for Dodge OEM Style Plugs

Item # 42145
Our Price: $33.76
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Custom Fit Vehicle Wiring
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Shipping Weight: 0.75 lbs
Hopkins Custom Fit Vehicle Wiring - 42145
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  • Reviews (71)
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Hopkins Custom Fit Vehicle Wiring - 42145

  • Custom Fit
  • Trailer Hitch Wiring
  • 4 Flat
  • 7 Round - Blade
  • No Converter
  • Hopkins


  • Provides both a 7-way and a 4-way trailer connector for Dodge, Chrysler, Jeep, Mercedes, and Mitsubishi
    • Utilizes the OEM connectors
  • Includes mounting bracket and 4-flat dust cover
  • Overall length: 10"
  • Replacement socket for the following vehicles with a factory 7-way:
    • 2007-2007 Chrysler Aspen
    • 2003-2008 Chrysler Pacifica
    • 2004-2008 Dodge Sprinter
    • 2009-2009 Dodge Sprinter 2500/3500
    • 2001-2003 Dodge Ram Van
    • 2000-2013 Dodge Ram Pickup 2500/3500
    • 2000-2009 Dodge Ram Pickup
    • 2000-2010 Dodge Dakota
    • 2005-2006 Dodge Durango
    • 2004-2013 Jeep Wrangler
    • 2006-2010 Jeep Commander
    • 2000-2010 Jeep Grand Cherokee
    • 2004-2007 Jeep Liberty
    • 2007-2010 Mercedes Benz GL Class
    • 2006-2008 Mitsubishi Raider

42145 7-Way & 4-Way Replacement Connector for Dodge OEM Style Plugs

Installation Details 42145 Installation instructions

California residents: click here

Customer Satisfaction Score:

Customer Reviews

7-Way & 4-Way Replacement Connector for Dodge OEM Style Plugs - 42145

Average Customer Rating:  4.8 out of 5 stars   (71 Customer Reviews)


Units arrived in a timely fashion. Unit fit well into a 2006 Dodge aftermarket flatbed. I did need to find other screws, as this unit is a bit thicker than the OEM one. Bedding of wires seems very good. I am a little unsure of the durability of the exposed wires from the connector to the back of the plug. I put several wraps of cloth tape followed by two of 'Electricians' tape on this one. [Note; this unit travels the ALCAN highway among others. All locales are noted for flying grit & gravel.] Connector worked 'right out of the box'. [I had a scare at first as the plug in tester would not indicate on the L. turn signal. It turned out to be the tester plug - NOT the purchased product!]
I anticipate this will be a great help in towing varied units. Not having to go under the bed for the OEM 4-wire connector will sure ease this older back!

We have now traveled many thousands of miles with this unit. There have been no problems. I would recommend this product to others without hesitation.
John O - 07/20/2018


This item was a perfect fit just plugged it in and 4 mounting screws. Better than original with the 7 blade RV plug and also a 4 pole flat in the same unit. The service was excellent and I received it earlier than expected. I would 100% buy all my trailer wiring products from


This plugged directly into my factory dodge wiring harness. Installations was super easy and I'm so glad I don't have to use that 7-flat 4 adapter anymore. Great product name brand and super clean install.


Good product, very easy to install. Seems to be well made, Works as expected. Really nice to have the seven blade and four pin in one unit. No need for adapter!


Good customer service, fast delivery, easy to install.


When you have a truck that came with trailer wiring thats now 20 years old, the trailer wiring 8 pin plug simply gets worn out. Why not replace it with something better. THis part is that something better because not only is it an 8 pin plug it has an additional 4 pin plug for the simpler trailers that do not have the electric brake wiring or charging circuit for campers. This eliminates the need to have a converter plug for that simple wiring but retains the capability of the 8 pin for folks who have multiple trailers with electric brakes and simple trailers with stop running and left or right turn signals. Thanks made my life easier and better.

Still a heavy duty after market non Original Equipment Manufactured Part....but its much much better than the original part from Dodge that wore out. Usually OEM parts are the best but not this time.. Thanks etrailer!!
Ralph - 04/25/2019


I gave a 4 star because I had to move the ground wire to match my truck, when I plugged it in it did not work until I moved the ground wire, now it works great, the item shipped fast and it was basically easy to install

Sometimes the wires on the product do not match the colors of wire on the vehicle. It is easiest to see where they go with a circuit tester.
-- Etrailer Expert Sierra K - 08/27/2021


Bolted right on. Great look, good quality, rugged design. The bolts could be just a hair longer, was kinda hassle but could blame that on my aftermarket bumper! Would definitely buy again!


The product fit exactly like I expected I had a very unique application and customer support provided all the information I needed. This is not my 1st time to purchase from etrailer I have looked at their Products and purchase from them several times over the years They have a very broad line of products and very competitively priced

Tom - 05/31/2020


Nice combination 7-blade & 4-pin connector which plugs into OEM wiring (Jeep Grand Cherokee) and mounts to existing hitch bracket. Easy install, worked great right out of box, and makes for a very clean look. etrailer ordering is very easy and shipping was quick. Thanks!


Perfect replacement for my original 7-blade plug. Timely delivery


I purchased this combination trailer plug assembly to replace my separately mounted and corroded plugs. I love that it is all in one unit. It is a replacement for Dodge, Chrysler etc..
I tested this new plug with my multimeter and reworked and connected it to my Ford F-250. It works GREAT and it looks good too!!!


My factory cinnector door broke eo i boight this which plugged right into the factory harness, the mount that is included is a little flemsy. But you get what you pay for! All the lights work on both my trailers!


Did exactly what etrailer phone order staff said it would.... they DO KNOW THEIR PRODUCTS..

Worked perfectly but in traded the Ram in about 6 months ago, so don’t really know how it’s doing a year later, but would imagine that it still would be ok
James - 04/12/2020


fits nice 2008 dodge ram 1500, but the mounting holes with machine screw are torn loose from housing and causing entire assy to be flopping around thru bumper, The mounting holes are hollow standoffs and pull thru plastic, GREAT idea I love it, until you could no longer have it fastened to bumper, housing needs to be solid and not extruded standoffs


I was not sure which plug was going to work with my truck. Julie helped me get the right part and it worked just right. It plugged right in and mounted right up with minimal grinding on my bumper to made fit. Great customer service.


Easy install on my Dodge. Took about ten minutes (including removal of the old plug) and I was back on the road with working trailer lights.


Quick easy install. Just bolt it on and plug it in to the existing wiring harness. About 10 minutes to install. Awesome


I purchased this product for my 2007 Mercedes ML. Plug and play just like it says. Even fits in the Oem metal bracket. Nice not to have to carry a four pin adapter.


Works great! Super easy to install


exact fit for my dodge ram 2003, My old original only had the 7 pin connector. so this was an upgrade. The screws provided were a little short for my bumper ( 1 inch) I bought 1.5 inch #8 machine screws and completed the replacement.


The plug was shipped quickly and works fine. Unfortuntaly it was shipped with mounting screws that were 1/4 inch to short and I had to run to the hardware store for new ones.


Solid product. I like the convenience of being able to use the blade or 7 way for my different trailers

Great. Exceeded expectations
Jon - 04/16/2019


Easy to install, plugged right in, it was exactly what I was looking for!


Fits the factory bumper in my 2006 Ram 2500 perfectly. I don't know why Dodge didn't combine the 4 way like this to begin with. The factory plug is just slightly better built than this one, mainly in the hinge mechanism. This is a great addition though.

Show More Reviews

See what our Experts say about this Hopkins Custom Fit Vehicle Wiring

  • Wire Color Functions of the Hopkins 7-Way part # 42145
    For the 7-Way & 4-Way Replacement Connector # 42145 that you referenced the white is ground, the blue is brake controller output, the brown is right turn/stop, red wire is left turn/stop, black is 12 volt output, yellow is aux or reverse light, and green is taillights.
    view full answer...
  • Will 7-Way and 4-Way Replacement Connector, # 42145 Fit a Dodge Ram 1500 Built in January, 2002
    The 7-Way and 4-Way Replacement Connector, # 42145, will fit your Dodge Ram 1500 that was built in January, 2002 (1/2002), as long as it has a factory tow package.
    view full answer...
  • How To Determine Towing Capacities of a 2003 Dodge Ram 1500
    In order to determine what the towing capacities of your 2003 Dodge Ram 1500 are I would recommend consulting the owners manual of the truck and see what Dodge recommends for you. If you are unsure what the trailer is capable of towing you should check the sticker that is on the frame of the trailer near the coupler that should have the axle ratings and overall towing capacities for the trailer. The 7-Way & 4-Way Replacement Connector, part # 42145, that you referenced is a replacement...
    view full answer...
  • How Does Factory 7-Way of 1998 Dodge Durango Remove
    If you fast forward to the 44 second mark of the video I attached you will see how to get release the connector to allow you to replace the 7-way of your 1998 Dodge Durango.
    view full answer...
  • Replacement 7-Way Recommendation for 2004 Dodge Ram
    The 7-Way part # 42145 that you referenced is a confirmed fit for your 2004 Dodge Ram. It will replace what you have and give you a fully functional 7-way that will allow your trailer brakes to work as that circuit is complete on the 7-way as well. I attached an install video for this for you to check out as well.
    view full answer...
  • Replacement 7-Way Recommendation for 1997 Dodge Ram
    Sounds like you are looking for a 7-way to plug into the square connector you have at the rear of your 1997 Dodge Ram. For that we have the # 42145 which comes with a mounting bracket and a 4-way that mounts to the side of the 7-way.
    view full answer...
  • 2002 Jeep Grand Cherokee Laredo Replacement 7-Way Recommendation
    Yes, the replacement 7-Way part # 42145 is a confirmed fit for your 2002 Jeep Grand Cherokee Laredo. If you are in need of a replacement 7-way this is a confirmed fit and connects easily to the factory trailer wiring port on the vehicle.
    view full answer...
  • Replacement Trailer Connector That Will Fit In Bumper On a 2006 Dodge Ram 2500
    Yes, the 7-Way & 4-Way Replacement Connector part # 42145 will fit the factory cutout in the rear bumper on your 2006 Dodge Ram 2500 which you can see in the attached photo. Therefore, the included mounting bracket is not needed.
    view full answer...
    Image 1 for
  • Can Prodigy Brake Controller be Turned Off on a 2007 Dodge Ram
    Brake controllers such as the P2 # 90885 have to have constant power to them otherwise you would have to go through the set up process every time. But the controller will go into a power saving mode after about 15 minutes of inactivity. While in power saving mode controllers only draw a few milliamps of power and that is such little power it would take it months of the truck just sitting for it to drain a battery. If it does not go into power saving mode then it could be due to corrosion...
    view full answer...
  • 7-Way and 4-Way Replacement Connector for a 2003 Dodge Ram 1500
    I am sorry, but I am not showing that part Multi-Plug T-One Connector, part # 20135, is a fit for your 2003 Dodge Ram 1500. You need the 7-Way and 4-Way Replacement Connector for Dodge Trucks, part # 42145, for your truck. It will plug directly into a receptacle under the bumper on your Dodge. All you have to do is mount the connector, and you are ready!
    view full answer...
  • Installing 7 Way Connector 32145 on a 2005 Chrysler Pacifica
    If you have the factory tow package, installation of part # 42145 is very easy. There will be a connector on a wiring harness that will fit this part, it will be tucked up, maybe taped, somewhere close to the rear bumper. You will then attach the mounting bracket in a convenient location near the hitch, and it will hold the 7 way plug. If you do not have the factory tow package, you will need to connect a T-One harness inline with the tail lights using part # 118303. We have videos for...
    view full answer...
  • Replacement 4-Way/7-Way for 1999 Dodge Ram 2500
    We have a replacement 4 and 7-way combo that fits your 1999 Dodge Ram 2500 with the part # 20135 but the # 42145 that you referenced does not fit as it was designed for a different truck that has a similar but different connector.
    view full answer...
  • 7-Way Replacement Recommendation for a 2005 Jeep Liberty
    If your 2005 Jeep Liberty doesn't have the square connector for the 7-way socket like what the # 42145 has there is an option that you have. The part # PK11893 could work as a replacement as long as at the back of your current connector there is a round connector. Nearly every 7-way out there uses this style of connector. It will look like the picture I attached. If you have this style of 7-way the part # PK11893 would work well for you as a replacement 7-way.
    view full answer...
    Image 1 for
  • Recommended 4-Way Flat Connector that Retains the Function of Factory 7-Way To Power Accessory
    Since you already have the factory 7-way, you only need the Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector # C55384. This will install right behind your 7-way to give you the 4-way plug you need for your backup camera. This will retain the functionality of your 7-way as well.
    view full answer...
    Image 1 for
  • Properly Wiring the Tekonsha Prodigy Brake Controller on a 2004 Dodge Durango With Tow Pkg
    It sounds to me as if you may have a couple of issues with the brake controller wiring. If your vehicle has the factory 7-Way at the rear of the vehicle and your trailer has original wiring, you should not need to switch the blue brake feed wire and the black 12-volt power wire on the trailer. I would make sure those wires are in the correct locations inside the trailer connector before proceeding to correct the wiring of the brake controller. Use the diagram of the 7-Way trailer connector...
    view full answer...
  • 7-Way/4-Way Integrated Trailer Connector Plus Additional 4-Way Recommendation for 2008 Dodge Ram
    If all you are looking for is a 7-way and a 4-way that are integrated together and would install on your 2008 Dodge Ram by simply replacing your current factory 7-way all you would need is the part # 42145. This would allow your travel trailer to plug into the 7-way when needed and then your light bar to plug into the 4-way. This installs with 4 screws around the perimeter of the housing like you said you were interested in. Now if you are trying to leave the 4-way free so that you can...
    view full answer...
  • GM and Dodge 7-Way Blade Plugs Not Wired The Same
    In my experience most factory 7-Way connectors are wired the same. You may have a aftermarket 7-Way connector installed on one of the two vehicles that has been wired differently or you may have a factory 7-Way that has been rewired to match a trailer that has a different wiring configuration. I would use a circuit tester, item # PTW2993 if needed, to check the connectors inside both trucks 7-Way. I would then make a diagram of each vehicles connections and check the wiring with the standard...
    view full answer...
  • Recommended Trailer Hitch Adapter For 2001 Dodge Durango To Tow ATV Trailer
    We have just what you are looking for. If you have a 2 inch receiver on your 2001 Durango I recommend the Reese Towpower 3-Way ATV Hitch, part # RP7065100. This adapter attaches to your 2 inch receiver and gives you a 5/8 inch hole for the clevis pin on the ATV trailer you just purchased. This adapter does have a 200 lb tongue weight capacity and a 2,000 lb towing weight capacity, and a 2-1/2 inch rise. For a higher capacity ball mount check out part # 80410. This ball mount has a weight...
    view full answer...
  • Installing Brake Controller on 2007 Dodge Ram with Factory 7-Way or Factory 4-Way Trailer Connector
    If your 2007 Dodge Ram already had a 7-Way, then all you would need to do is connect the Hopkins Replacement harness, # 42145, and install the brake controller and plug it in to the factory tow package plug. If your Ram had a factory 4-Way, there are a couple of more steps. Start by plugging in the brake control adapter into the OEM harness located under the steering wheel, just to the right of the emergency brake pedal. Then find a place to mount the brake controller. Look for a connector...
    view full answer...
  • Which 7-Way Trailer Connector Fits a 2007 Dodge Ram with Factory Tow Package
    The Pollak Custom Fit Vehicle Wiring, # HM40975-11933, will fit your 2007 Dodge Ram, but will need to be mounted using the included bracket to a location under the bumper. A similar part is the Hopkins Custom Fit Vehicle Wiring, # 42145. This connector would also require mounting under the bumper. Both of these connectors have 7 and 4-Way functions and include mounting brackets. If you wanted to install a connector in the factory knockout on the bumper, you may have to make some modifications...
    view full answer...
  • Winch and Install Wiring Harness Recommendation for a 2008 Dodge Ram 1500
    You can wire the winch up to either the truck battery or the trailer battery. If the plan is to use the winch on the vehicle then I would wire it there. If the winch is for the trailer then powering off the trailer battery would also work. But you will need to charge the battery more frequently. As long as you know which wire is positive and negative you should be just fine. I wouldn't get too hung up on the colors of the wires as they aren't always consistent. For a winch you could use...
    view full answer...
  • Why Are My Trailer Tires Locking Up In Reverse?
    Yes that very well may be causing your trailer to act funky. Usually when this occurs it has to do with solenoid on the reverse lockout not getting voltage. Sometimes this can be attributed from a corroded connector or your wiring has become damaged. I recommend inspecting your connectors, and ensure that there is no corrosion or damage to the connector. If there is damage, you can replace the adapter with # A10-7275VP. Additionally, if you need a new 7-way connector we do sell a variety...
    view full answer...
  • Can the Curt Adapter # C57300 be Used to Upgrade 7-Way to Combo Connector on a 2007.5 Ram Pickup
    Yes, you can use the Curt Dodge OEM Harness Adapter # C57300 to install a 7-Way/4-Way connector like part # HM40975 or # 30955 on your 2007 Dodge Ram Pickup. A more cost-effective option though would be to install the Hopkins # 42145 which comes with the 7-Way/4-Way connector and installs directly into your OEM connector.
    view full answer...
  • Trailer Hitch and Custom Trailer Wiring for a 2008 Dodge Ram Quad Cab 1500 Big Horn
    The 7-Way and 4-Way Replacement Connector, # 42145, is the correct harness for your 2008 Dodge Ram if you already have or had a factory 7-Way. One end mounts to the rear of the vehicle, there might even be a knock out on the bumper that can be removed. The other end plugs into the vehicle wiring. Your truck should have a plug behind the bumper, near the center. It will plug into the square connector of the harness. If the truck does not already have any connectors, you will need to start...
    view full answer...

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